Picking-motion for looms.



No. 872,781. PATENT-ED DEC. s, 1907.

- W. H. AYER.

PIUKING MOTION FOR LOOMS.

APPLICATION FILED JULY 12, 1906 l acccm anvin drawin 1n wear'ln conjun ction with lllfifi ilfi 8 TBS WILLIAMH. AYER, or CLAREMONT, NEWHAMPSHIRE.

PICKING MOTION FOR iLOOIllES.

' Specification of Letters Eatent. I

Patented Dec. 3,1907.

Application filed July 12.1906. Serial llo. 325.835-

fo all whom it may concern:

Be it known that 1 WrLnL-iM H. AYER, a citizen oi the United States,residingat Claremont,- in the county of Sullivan and State of. New Hamshire, have invented a certain new and useful? Improvement inPicking-Motion for Looms, of which the following is a specification,reference being had therein to the My invention relates to improvementsin picker motion for looms and particularly aplies to themechanismconstituting the picking motion thereof.

The object of the invention is to improve )llx'} picking ml .nism byproviding novel features in the construction of the lug strapparticularly, to render the same more durable the picker stafl toprovide novel means of adjustment between the picker arm and lug'stick,and also novel adjusting mechanism between the picker arm and shoe orrock shaft; and to improve the general. construction of this class ofdevices as. will a )pear hereinafter.

With these o ects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts ashereinafter described more fully ointed out in the claims, and asexemplified in the accompanying drawings. 7

In the drawings 1 have shown one example or the complete physicalembodiment of the invention, constructed according to the best in do ihave so" far devised for the practicat ap )llCit'tlOIi of theprinciple,- andone 'modi fier form of a part of the invention.

Figure 1 shows much ofthe mechanism oi a loom as is necessary toillustrate the application of lflY lIl'VQlltiOIl thereto, and t same isshown in operative position. Fig. 2

is a view taken at right angles to Fig. 1, showing the lug stick insection. Fig. 3 is a horizontal sectional view of the lug strap and apcrtionoi' the lug stick. Fig. 4 is an enlarged etail sectionillustrating the means for regulating the length of the lug stick.

. Fig. 5 is a modified form of the lug istrap,

shown in section, and, Fig. 6 is a view of a modified picker arm.

Referring to the drawings, the mmieral 1 designates the frame of theloom; 2, the

pickeifstall', 3 the pivot, point of the stall? supported in the rockerarm 4-;

5,. 5 su pportq lugs secured to the irame; 6,

the rock that journaled in said lugs; 7, a slidable block provided witha squared. opening and the lug stick;

mounted on the shaft 6, and further provided with {a set screw 8. bymeans of which screw the slidable block may be secured at adjustedpoints on the shaft; '9, the picker arm ;-]0, a bolt passed through thepicker armand also through a flange 11 011- the block 7, and providedwithan'ut for securingsaid flange and picker arm; -12, anoil'sot orangular portion, forming a flange of the picker arm and located atits'lower end, and adapted to overhang the square rock shaft, as seenclearly in Fig. 4 13, aset screw passed through a threaded opening inthe flange l2 and bearing against the rock shaft; 14 a lock nut on. thescrew 1.3; 15, an angular lug formed at the upper-end of the picker armand located parallel with therock shaft; 16, .17, an opening inthc endof the lug stick of a size sullicient to pass the lug 15, and togetherwith the lug forming the connection between the picker arm and the lugstick; 18, thelug strap; 1!), slots l'orined near the inner ends ofarmsoi the lug strap; 20, a bolt passed through said slots andalsothrough an opening in. the end of the-lug stick for forming thecommotion therebctween 21-, 21 are bandsor straps of leather, bent toU-shape as shown, and in some instances provided with a metallic fillingpiece 22; 23, a Wearing block preferablycomposed o'f-layers of leatheror any other. suitable material and located in one end ct thelug strap;24, a bolt passed through openings in the lug strap and b.lock,fl'orscouring the block to the'lugstrap, and provided with a suitablenut, and25 an opening in the lug strap to accoimnodate the, picker stall.

In the modified form shown in Fig. 5 ll omit the metallic filling piecein constructing the lug strap and form the lug of a number of layers 26,preferably of leather, (but of course it will be understood that I maymake this lug of layers of ticking, ducking, or in fact any materialwhich would be suitable for the purpose) and the block '27 in thisinstance is sewed to the lug strap, as represented by threads 28. 1 alsoreserve the right to dispense with the metallic filling piece whenthe-wearing block is secured to justed position the bolt 10is againtightened.

is reduced to a minimum.

and consequently the expense ofmaintaining the machine. In theconstruction of the Wearing block I preferably use leather, as I findthis material to possess the best frictional qualitiesor properties, andwhen the block rldes upon the picker staff, the friction I do not wishto limit myself, however, to the exclusive use of leather in theconstruction of the wearing block, as other suitable materials may befound which will perform the service as Well.

The connection between the lug stick and picker arm is extremely simpleand yet very effective, as the stud or lug 15 is shaped to form asecuring means as well as a bearing between the lug stick and pickerarm. The lug stick is attached to the picker arm stud before connectionto the machine, by inserting theextreme end of the stud through theopening in the lug stick and then permitting the picker arm to belowered, then the lug stick is attached to the lug strap, and theupright portion of the stud prevents disconnection of the lug stick andthe picker arm. .By manipulating, the screw 13 in the flange 12, andwith the screw bearing on the rock shaft, the upper end of the ieker armmay be moved toward or away from the picker staff, the movement being onthe bolt 10, as a center, and when the proper position is secured theconnection may be made rigid by tightening up on bolt 10 by means of itsnut,

In the modified form of picker arm illustrated in Fig. 6, the rock shaft'6" is formed with a slotted enlarged portion in which the picker arm 9is held by bolt 10. When bolt 10 is loosened the adjusting bolt 13 maybe turned to draw the picker arm away from the rock shaft 6, and tosecure rigidity in the, ad-

A lug 15 is also used on this picker arm 9".

In the first instance, if the lugstick is accidentally broken, byremoving the bolt 20, which fastens the strap to the stick, the stickmay be readily disengagedfrom the picker arm by turning the lug stickoil' the lug 15 on the picker arm, and a new stick may be attached by areverse procedure.

From the foregoing description taken in l with the bolt and use threadsfor securing the block to the strap; I may also usethe strap with orwithout the metallic filling piece; I may use the separate elements, ofthe invention, such as the picker arm or lug strap in combination witheach other, or may supply a machine with either of them separately.

Having thus fully described my invention,

what I claim as new Letters Patent is: e

1. In a loom, and in combination, the picker staff, lug stick and pickerarm, an aperture near one end of the lug stick, an angular lug on thepicker arm for engagement with said opening or aperture; a rock shaft, a

and desire to-seeure by 'slidable block thereon and pivotally connectedto said. picker arm, and adjusting means on the picker arm adapted tobear on said shaft.

2. In aioom, and in combination, the picker stall, lug stick, and pickerarm, an opening in the lug, stick and a stud on the picker arm engagingsaid opening; a rock shaft, a movable block on said shaft, a boltsecuring said block and picker arm, and a set screw in the picker armbearing on said shaft.

3. In a loom, the combination with the rock shaft thereof, of a pickerarm adjustably secured to said shaft, :1 lug stick removably secured tosaid picker arm, and a lugstrap adjustably secured to said lug stick,said lug strap comprising alternate layers of leather, a flat metallicfilling piece and an outer layer of leather, and a bearing block sewedin the looped end of the strap.

in testimony whereof I affix my signature in presence of two witnesses.

. WILLIAM H. AYER. Vitnesses 11. W. P. PUTNAM, A. D. DANSUSEN.

